| Name | Character | Episodes |
|---|---|---|
| Simon Callow | Henry Palmer | 9 |
| Anita Dobson | Margaret | 9 |
| Bill Paterson | Charles | 9 |
| Amit Shah | Jeremy | 6 |
| Frances Barber | Angela | 2 |
| Moyo Akandé | DS Freeman | 2 |
| Jessie Cave | Steph | 1 |
| Nickolas Grace | Robert Downey, Sr. | 1 |
| Colin McFarlane | Roderick | 1 |
| Ethan Lawrence | Sales Lee | 1 |
| Philip Cumbus | PC Burns | 1 |
| Rian Gordon | Luke | 1 |